CoreXY Belt Drive
Design & Suppliers
As noted previously, in "A new anti-intersection iteration of the CoreXY principle design" at https://groups.google.com/forum/#!topic/h-bot-and-corexy-3d-printers/jR83iH8H2IM and illustrated in the image posted there (and copied here) It's possible to avoid belt intersection issues in the Core-XY design by stacking the belts in a high (blue) and a low (red) belt path as shown. the image links to a full size copy of the original image |
Basic tools needed: Calipers, Marker for contrast (note the tubing has already been coated red), Knife or Scribe and Tubing Cutter. I got mine used at a garage sale! Since this is soft aluminum tubing you'll also need one of the shoulder bolts to keep the tubing from collapsing (see below). | Set the calipers to the size desired, use the lock (the knurled wheel on the top just above the mm/inch button) to hold the position. |
Above: If you have a V-Block it will keep the tubing from rolling away while you scribe a cutting line. Right: cutting line scribed with knife edge. | |
Above: scribed cutting line Right: Line up the cutting wheel of the tubing cutter on the scribed line. Insert the bolt before starting the cut. | |
Tighten the cutter just a little with each revolution around the tubing | You should be able to see when the cut is complete. |
Above: Loosen the cutter and remove Right: Separate the parts. Notice the score mark on the shoulder bolt. It's mostly cosmetic. |
Shoulder Diameter | 6mm | 8mm |
Thread | 5mm x 0.8 | 6mm x 1.0 |
Thread Length | 9.75 | 11.25 |
Head Diameter | 10 | 13 |
Head Height | 4.5 | 5.5 |
Shoulder Lengths | 10,12,16,20,25,30,40,50 | 12,16,20,25,30,40,50,60,70 |
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